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Linux
Analysis Report
t6.elf
Overview
General Information
Detection
Score: | 48 |
Range: | 0 - 100 |
Whitelisted: | false |
Signatures
Multi AV Scanner detection for submitted file
Enumerates processes within the "proc" file system
Sample has stripped symbol table
Sample tries to kill a process (SIGKILL)
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
Uses the "uname" system call to query kernel version information (possible evasion)
Classification
Joe Sandbox version: | 42.0.0 Malachite |
Analysis ID: | 1589832 |
Start date and time: | 2025-01-13 08:19:51 +01:00 |
Joe Sandbox product: | CloudBasic |
Overall analysis duration: | 0h 4m 41s |
Hypervisor based Inspection enabled: | false |
Report type: | full |
Cookbook file name: | defaultlinuxfilecookbook.jbs |
Analysis system description: | Ubuntu Linux 20.04 x64 (Kernel 5.4.0-72, Firefox 91.0, Evince Document Viewer 3.36.10, LibreOffice 6.4.7.2, OpenJDK 11.0.11) |
Analysis Mode: | default |
Sample name: | t6.elf |
Detection: | MAL |
Classification: | mal48.linELF@0/0@2/0 |
Command: | /tmp/t6.elf |
PID: | 5538 |
Exit Code: | 139 |
Exit Code Info: | SIGSEGV (11) Segmentation fault invalid memory reference |
Killed: | False |
Standard Output: | |
Standard Error: | qemu: uncaught target signal 11 (Segmentation fault) - core dumped |
- system is lnxubuntu20
- cleanup
⊘No yara matches
⊘No Suricata rule has matched
- • AV Detection
- • Networking
- • System Summary
- • Persistence and Installation Behavior
- • Malware Analysis System Evasion
Click to jump to signature section
Show All Signature Results
AV Detection |
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Source: | ReversingLabs: |
Source: | TCP traffic: |
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: |
Source: | DNS traffic detected: |
Source: | String found in binary or memory: | ||
Source: | String found in binary or memory: | ||
Source: | String found in binary or memory: | ||
Source: | String found in binary or memory: |
Source: | Network traffic detected: |
Source: | .symtab present: |
Source: | SIGKILL sent: | Jump to behavior |
Source: | Classification label: |
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
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Source: | File opened: | Jump to behavior | ||
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Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior |
Source: | Queries kernel information via 'uname': | Jump to behavior |
Source: | Binary or memory string: | ||
Source: | Binary or memory string: | ||
Source: | Binary or memory string: | ||
Source: | Binary or memory string: | ||
Source: | Binary or memory string: |
Reconnaissance | Resource Development | Initial Access | Execution | Persistence | Privilege Escalation | Defense Evasion | Credential Access | Discovery | Lateral Movement | Collection | Command and Control | Exfiltration | Impact |
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Gather Victim Identity Information | Acquire Infrastructure | Valid Accounts | Windows Management Instrumentation | Path Interception | Path Interception | Direct Volume Access | 1 OS Credential Dumping | 11 Security Software Discovery | Remote Services | Data from Local System | 1 Encrypted Channel | Exfiltration Over Other Network Medium | Abuse Accessibility Features |
Credentials | Domains | Default Accounts | Scheduled Task/Job | Boot or Logon Initialization Scripts | Boot or Logon Initialization Scripts | Rootkit | LSASS Memory | Application Window Discovery | Remote Desktop Protocol | Data from Removable Media | 1 Non-Application Layer Protocol | Exfiltration Over Bluetooth | Network Denial of Service |
Email Addresses | DNS Server | Domain Accounts | At | Logon Script (Windows) | Logon Script (Windows) | Obfuscated Files or Information | Security Account Manager | Query Registry | SMB/Windows Admin Shares | Data from Network Shared Drive | 2 Application Layer Protocol | Automated Exfiltration | Data Encrypted for Impact |
⊘No configs have been found
This section contains all screenshots as thumbnails, including those not shown in the slideshow.
Source | Detection | Scanner | Label | Link |
---|---|---|---|---|
29% | ReversingLabs | Linux.Backdoor.Mirai |
⊘No Antivirus matches
⊘No Antivirus matches
⊘No Antivirus matches
Name | IP | Active | Malicious | Antivirus Detection | Reputation |
---|---|---|---|---|---|
daisy.ubuntu.com | 162.213.35.24 | true | false | high |
Name | Source | Malicious | Antivirus Detection | Reputation |
---|---|---|---|---|
false | high | |||
false | high | |||
false | high | |||
false | high |
- No. of IPs < 25%
- 25% < No. of IPs < 50%
- 50% < No. of IPs < 75%
- 75% < No. of IPs
IP | Domain | Country | Flag | ASN | ASN Name | Malicious |
---|---|---|---|---|---|---|
185.125.190.26 | unknown | United Kingdom | 41231 | CANONICAL-ASGB | false |
Match | Associated Sample Name / URL | SHA 256 | Detection | Threat Name | Link | Context |
---|---|---|---|---|---|---|
185.125.190.26 | Get hash | malicious | Mirai | Browse | ||
Get hash | malicious | Mirai | Browse | |||
Get hash | malicious | Unknown | Browse | |||
Get hash | malicious | Unknown | Browse | |||
Get hash | malicious | Unknown | Browse | |||
Get hash | malicious | Prometei | Browse | |||
Get hash | malicious | Mirai | Browse | |||
Get hash | malicious | Mirai | Browse | |||
Get hash | malicious | Mirai | Browse | |||
Get hash | malicious | Mirai | Browse |
Match | Associated Sample Name / URL | SHA 256 | Detection | Threat Name | Link | Context |
---|---|---|---|---|---|---|
daisy.ubuntu.com | Get hash | malicious | Mirai | Browse |
| |
Get hash | malicious | Mirai | Browse |
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Get hash | malicious | Mirai | Browse |
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Get hash | malicious | Mirai | Browse |
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Get hash | malicious | Mirai | Browse |
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Get hash | malicious | Mirai | Browse |
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Get hash | malicious | Mirai | Browse |
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Get hash | malicious | Unknown | Browse |
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Get hash | malicious | Unknown | Browse |
| ||
Get hash | malicious | Mirai, Okiru | Browse |
|
Match | Associated Sample Name / URL | SHA 256 | Detection | Threat Name | Link | Context |
---|---|---|---|---|---|---|
CANONICAL-ASGB | Get hash | malicious | Mirai | Browse |
| |
Get hash | malicious | Mirai | Browse |
| ||
Get hash | malicious | Mirai | Browse |
| ||
Get hash | malicious | Mirai | Browse |
| ||
Get hash | malicious | Mirai | Browse |
| ||
Get hash | malicious | Unknown | Browse |
| ||
Get hash | malicious | Unknown | Browse |
| ||
Get hash | malicious | Unknown | Browse |
| ||
Get hash | malicious | Unknown | Browse |
| ||
Get hash | malicious | Unknown | Browse |
|
⊘No context
⊘No context
⊘No created / dropped files found
File type: | |
Entropy (8bit): | 6.113719063811208 |
TrID: |
|
File name: | t6.elf |
File size: | 89'652 bytes |
MD5: | 7db589ac12c48830edc896e5a72172ec |
SHA1: | d7c4b7525c05f81d8bf3bd969909b1bd9064f729 |
SHA256: | 0787b187057248b0badadc13b1b65e942fc3ced46673ba3e20f11270acce2267 |
SHA512: | a3b03edfc48ac5a51e83460994a0e2ec71c6fb031e5d5f767ee2ee68b880ab4bc92544f352649439bfe2f8471edb74d036593d26c268421830271ed5cc4a0e68 |
SSDEEP: | 1536:cmn2EENzVHw1RVJUqJYK8eBhocLSJgUmvVZllZ7ilW+URUlnNIZgTeg:0ypUcY0hocLSJ2ZMW+UClNJT |
TLSH: | 1593195AF9819B41C4D515BBBE1E529E33076BA8E3EA3213DD201B2533CAA1F0F77506 |
File Content Preview: | .ELF..............(.........4....[......4. ...(........p.U..........................................$V..$V..............$V..$V..$V......L9..............(V..(V..(V..................Q.td..................................-...L..................@-.,@...0....S |
ELF header | |
---|---|
Class: | |
Data: | |
Version: | |
Machine: | |
Version Number: | |
Type: | |
OS/ABI: | |
ABI Version: | 0 |
Entry Point Address: | |
Flags: | |
ELF Header Size: | 52 |
Program Header Offset: | 52 |
Program Header Size: | 32 |
Number of Program Headers: | 5 |
Section Header Offset: | 89012 |
Section Header Size: | 40 |
Number of Section Headers: | 16 |
Header String Table Index: | 15 |
Name | Type | Address | Offset | Size | EntSize | Flags | Flags Description | Link | Info | Align |
---|---|---|---|---|---|---|---|---|---|---|
NULL | 0x0 | 0x0 | 0x0 | 0x0 | 0x0 | 0 | 0 | 0 | ||
.init | PROGBITS | 0x80d4 | 0xd4 | 0x10 | 0x0 | 0x6 | AX | 0 | 0 | 4 |
.text | PROGBITS | 0x80f0 | 0xf0 | 0x13b8c | 0x0 | 0x6 | AX | 0 | 0 | 16 |
.fini | PROGBITS | 0x1bc7c | 0x13c7c | 0x10 | 0x0 | 0x6 | AX | 0 | 0 | 4 |
.rodata | PROGBITS | 0x1bc8c | 0x13c8c | 0x1868 | 0x0 | 0x2 | A | 0 | 0 | 4 |
.ARM.extab | PROGBITS | 0x1d4f4 | 0x154f4 | 0x18 | 0x0 | 0x2 | A | 0 | 0 | 4 |
.ARM.exidx | ARM_EXIDX | 0x1d50c | 0x1550c | 0x118 | 0x0 | 0x82 | AL | 2 | 0 | 4 |
.eh_frame | PROGBITS | 0x25624 | 0x15624 | 0x4 | 0x0 | 0x3 | WA | 0 | 0 | 4 |
.tbss | NOBITS | 0x25628 | 0x15628 | 0x8 | 0x0 | 0x403 | WAT | 0 | 0 | 4 |
.init_array | INIT_ARRAY | 0x25628 | 0x15628 | 0x4 | 0x0 | 0x3 | WA | 0 | 0 | 4 |
.fini_array | FINI_ARRAY | 0x2562c | 0x1562c | 0x4 | 0x0 | 0x3 | WA | 0 | 0 | 4 |
.got | PROGBITS | 0x25634 | 0x15634 | 0xa8 | 0x4 | 0x3 | WA | 0 | 0 | 4 |
.data | PROGBITS | 0x256dc | 0x156dc | 0x43c | 0x0 | 0x3 | WA | 0 | 0 | 4 |
.bss | NOBITS | 0x25b18 | 0x15b18 | 0x3458 | 0x0 | 0x3 | WA | 0 | 0 | 4 |
.ARM.attributes | ARM_ATTRIBUTES | 0x0 | 0x15b18 | 0x16 | 0x0 | 0x0 | 0 | 0 | 1 | |
.shstrtab | STRTAB | 0x0 | 0x15b2e | 0x83 | 0x0 | 0x0 | 0 | 0 | 1 |
Type | Offset | Virtual Address | Physical Address | File Size | Memory Size | Entropy | Flags | Flags Description | Align | Prog Interpreter | Section Mappings |
---|---|---|---|---|---|---|---|---|---|---|---|
EXIDX | 0x1550c | 0x1d50c | 0x1d50c | 0x118 | 0x118 | 4.4400 | 0x4 | R | 0x4 | .ARM.exidx | |
LOAD | 0x0 | 0x8000 | 0x8000 | 0x15624 | 0x15624 | 6.1057 | 0x5 | R E | 0x8000 | .init .text .fini .rodata .ARM.extab .ARM.exidx | |
LOAD | 0x15624 | 0x25624 | 0x25624 | 0x4f4 | 0x394c | 6.2003 | 0x6 | RW | 0x8000 | .eh_frame .tbss .init_array .fini_array .got .data .bss | |
TLS | 0x15628 | 0x25628 | 0x25628 | 0x0 | 0x8 | 0.0000 | 0x4 | R | 0x4 | .tbss | |
GNU_STACK | 0x0 | 0x0 | 0x0 | 0x0 | 0x0 | 0.0000 | 0x7 | RWE | 0x4 |
Download Network PCAP: filtered – full
- Total Packets: 4
Timestamp | Source Port | Dest Port | Source IP | Dest IP |
---|---|---|---|---|
Jan 13, 2025 08:20:55.281239033 CET | 46540 | 443 | 192.168.2.14 | 185.125.190.26 |
Jan 13, 2025 08:21:26.000096083 CET | 46540 | 443 | 192.168.2.14 | 185.125.190.26 |
Timestamp | Source Port | Dest Port | Source IP | Dest IP |
---|---|---|---|---|
Jan 13, 2025 08:20:49.265219927 CET | 44625 | 53 | 192.168.2.14 | 8.8.8.8 |
Jan 13, 2025 08:20:49.265273094 CET | 43104 | 53 | 192.168.2.14 | 8.8.8.8 |
Jan 13, 2025 08:20:49.271744967 CET | 53 | 43104 | 8.8.8.8 | 192.168.2.14 |
Jan 13, 2025 08:20:49.272237062 CET | 53 | 44625 | 8.8.8.8 | 192.168.2.14 |
Timestamp | Source IP | Dest IP | Trans ID | OP Code | Name | Type | Class | DNS over HTTPS |
---|---|---|---|---|---|---|---|---|
Jan 13, 2025 08:20:49.265219927 CET | 192.168.2.14 | 8.8.8.8 | 0xedbf | Standard query (0) | A (IP address) | IN (0x0001) | false | |
Jan 13, 2025 08:20:49.265273094 CET | 192.168.2.14 | 8.8.8.8 | 0x565 | Standard query (0) | 28 | IN (0x0001) | false |
Timestamp | Source IP | Dest IP | Trans ID | Reply Code | Name | CName | Address | Type | Class | DNS over HTTPS |
---|---|---|---|---|---|---|---|---|---|---|
Jan 13, 2025 08:20:49.272237062 CET | 8.8.8.8 | 192.168.2.14 | 0xedbf | No error (0) | 162.213.35.24 | A (IP address) | IN (0x0001) | false | ||
Jan 13, 2025 08:20:49.272237062 CET | 8.8.8.8 | 192.168.2.14 | 0xedbf | No error (0) | 162.213.35.25 | A (IP address) | IN (0x0001) | false |
System Behavior
Start time (UTC): | 07:20:46 |
Start date (UTC): | 13/01/2025 |
Path: | /tmp/t6.elf |
Arguments: | /tmp/t6.elf |
File size: | 4956856 bytes |
MD5 hash: | 5ebfcae4fe2471fcc5695c2394773ff1 |